Light-reflecting device or unit



1,625,905 Apnl 26 1927 R H MURRAY V LIGHT REFLECTING DEVICE 0R UNIT Filed April 5. 1925 'Ih Jenio/ M MY, v I: J W7 v d Patented Apr. 26, 1927.

UNITED STATES RIUHIARU HOLLINS MURRAY, ll MANQHIESTER, ENQHLAND.

LIGH$BEFIEQEGTING DEVICE Ulit UNIT.

Application. tiled April 5, 1926, Serial Flo. B9376, amt in Gt-root Britain January 522, we

(loin Devices ot' this nature moy olso ho used to 'l" t huoyo o1 heocohs and other such e mihir g5; hloo ooeci ho hovigotioh, as in ouch uses thoy would imlicoto it Well clollhol'l course 0;. lishzoixlt ihclicuto o (locking plaice,

'ilfho ihvootioo hos for its object to provide o'ovooiejoto .lll lighlwreilooting; devices or oi the twee trottoi'i'ecl to, whereby to to e the fitting ttlltl ox. grouping oi the in homes 'Ut llUllIGlS, zuul olso to proa totlectoio ogoioot occidental tlomoge. l ghti'oltectihg device or unit oi lhetype tote ocl to according to the ihvohtioh, 'o gotovhioii with o hose or cup upon which the tlotice or unit iiouy loo stoooi while being titted it]. o il'oolo or holder Mid which oloo to hoot" uo o protector to the reflector.

i uiurthei', mootfling to the invention, the phone tfilttt outtoco oif the lens is ground and yiuiliohoth 'Whilot Where the hose or cup is oepflooii tho tetlectoi' the intervening hotweoh the latter ohcl said loose or Ull. too he titted with it suitable plastic Wotio .otieptcli to harden otter the hooe heeo littott, i oecooi oohyihg drawings it is o t l elevation ott one iorio oi iofloct Lilo uhit 21h ocootolohoo with tho ihvootioo, til o ploh oi the hose or cop thotoli i o. $1 oool more like views to Fig. 1 it two thither toiroio oi reflecting uioit hi toooimoce with tho ihventioh, ooci ltig. 5 it oeeti l olc'votion illuoti'otiiog the city oi o t'lttltlliUttl oi units in it home or to :toi'io o to tho thowihg, 'l' is a lens but to Wit hoot surface it and o plume co 9 hohincl which is fitted it com i elevice iliooti-otool in Fight. Ti ohcll h, til which toot ho pi'oooeil. out ot oheet motel in the form oi? o hot-bottomed cup, is fitted on the rear end oi the loos to enclose the reflector l0 and i'orm o base upon which the unit only he stood upright.

'iho vertical wall or lhmgo 12 of the cop l2 oralooalo beyond the flange or rho it at the rellcctor and has i'oi'inocl in it no oohuloi shoulder l-el; against which the reflector home. the cup only he secured in position by chimpperiplwry of the iono. Preferably, the out) is portly lillenl with :1 plastic inoteiioi it, such as putty, cement, lczu'is phioter or the like, and the unit is pressed into the coo uh til the rcl'lector bears against the ohhuho ohouhler it the llispluced plootie material filling tho Slhlto hetu'oeh tho Willi oillooge ii of the cup 11ml the lens, uml the ptootic Inulerioi on subsequent setting or hardening serving lo secure the cup in gooitioh. litecosseo to only he rovided in tho shoulder it; to permit the mo; how of: tho llisploocnl plootic omtoi'inl from lh space below tho reflector into the omiuluo between the too rhphovy oi the roiioclor oml the vertical will or linnge til oi tho on.

'ihe rovision ol. he cup .1221 prevents ec coss oi Llil'll and moisture to tho ieilectiog siu'iuee oi the rei'ieotor and damage to the lotto]: by hhoohs 07. hiows, mid. also enables tho units to be accurately positioned, with out tho use of external support, while being gi-ou pocl in a trayydihe holder Tli', 5, in which they may he secured by Plcomeot 01 plastic nmterioi 15 which is run into the holder other assembly oi the units.

in the modified "form oi omit shown in lhig. it tho oh lift oioresuhi io dispensed with and, ihotoocl, the rim or flange til i reflector 10 is oittehiflocl and turned hook at 11* to town at hose on which the unit coo rest upright. The splice below the i'eilooto" ohcl hetwoelo some omit the 'tm'oecl hoch rim or flange l1 prelorobiy iillecl with Paris plaster or other soitohlo material 15.

itccorliihg to the modification illustotecl in liig. at, the reflector 10 is made in the tori-oi oio crop having; o thio rim 0t hinge ill for clooipihg oh the periphety of" the tens zuocl at Hot hose lit on which tho unit can stoiul upright.

l ho. oil oooos the plane rezu' surio 9 of the ions is proiforrohiy ground ohci polished as it 'louhd thet such cooshrlei'ehly enhances the reflecting; properties; oi the device oioci is no 111g ils wall or flange i3 tightly against the i till it tit improvement over the device as hitherto made in which the said plane surface was unggund and unpolished.

at I claim as m invention and desire to secure by Letters atent is:--

1. A light reflecting device, com risin a cylindrica lano-convex lens t e axial len .of w ch is substantially twice the ra us of its convex surface, and a concave ace positioned behind the rear surface of the lens and a cap mounted behind said reflecting surface adapted to serve as. protector and a base for the reflector, said cap being in the form of a flat bottom cap enclosing the reflector and havin an extending annular wall embracin t e 'riphery of the lens, the cap and re ector eing cemented together wlth a plastic material inserted between the cap and reflector and adapted to subsequently harden.

4. A light-reflecting device or unit of the kind referred to, comprising a cylindrical lane-convex lens, a concave reflecting surace positioned behind the rear surface of the lens and a cap mounted behind said reflecting surface adapted to serve as a protector and a base for the reflector, said cap being in the form of a flat bottom cap enclosing the reflector and havin an extend ing annular wall embracin tie periphery of the lens, the cap and re ector being ce mented together with a plastic material inserted between the cap and reflector and adapted to subsequently harden, said wall havmg an annular shoulder intermediate its extremities for engaging said lens.

5. A light-reflecting device or unit of the kind referred to, comprising a cylindrical lano-convex lens, a concave reflecting surace positioned behind the rear surface of the lens and a cap mounted behind said refleeting surface adapted to serve as a pro tector and a base for the reflector, said cap being in'the form of a flat bottom cap enclosing the reflector and having an extending annular wall embracin the eriphery of the lens, the cap and re ector liein cemented together with a plastic materia inserted between the ca and reflector and adapted to subsequent y harden, said wall havmg an annular shoulder intermediate its extremities for engaging said lens, said shoulder having receses therein adapted to permit insertion of said plastic material between said cap and said reflector.

In witness whereof I have hereunto set my hand.

' RICHARD HOLLINS MURRAY. 

